/**
 * Copyright (c) 2015-2017, Winter Lau (javayou@gmail.com).
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.oschina.j2cache.caffeine;

import java.util.Arrays;
import java.util.Collection;
import java.util.Map;

import com.github.benmanes.caffeine.cache.Cache;

import net.oschina.j2cache.Level1Cache;

/**
 * Caffeine cache
 *
 * @author Winter Lau(javayou@gmail.com)
 */
public class CaffeineCache implements Level1Cache {

	private Cache<String, Object> cache;
	private long size;
	private long expire;

	public CaffeineCache(Cache<String, Object> cache, long size, long expire) {
		this.cache = cache;
		this.size = size;
		this.expire = expire;
	}

	@Override
	public long ttl() {
		return expire;
	}

	@Override
	public long size() {
		return size;
	}

	@Override
	public Object get(String key) {
		return cache.getIfPresent(key);
	}

	@Override
	public Map<String, Object> get(Collection<String> keys) {
		return cache.getAllPresent(keys);
	}

	@Override
	public void put(String key, Object value) {
		cache.put(key, value);
	}

	@Override
	public void put(Map<String, Object> elements) {
		cache.putAll(elements);
	}

	@Override
	public Collection<String> keys() {
		return cache.asMap().keySet();
	}

	@Override
	public void evict(String... keys) {
		cache.invalidateAll(Arrays.asList(keys));
	}

	@Override
	public void clear() {
		cache.invalidateAll();
	}

	@Override
	public void clearExpiryKeys() {
		// TODO Auto-generated method stub

	}
}
